diff --git a/build/build_config.h b/build/build_config.h
index 2b9efda15a2759b5cf0617123916257178218abd..c4c8ed78a599309400de7fea99a77af4b14d86f6 100644
--- a/build/build_config.h
+++ b/build/build_config.h
@@ -66,4 +66,3 @@
 #endif
 
 #endif  // BUILD_BUILD_CONFIG_H_
-
diff --git a/media/audio/audio_output.h b/media/audio/audio_output.h
index 8f95a70ad113d722e9357c10292120fd30ea5c89..0cfca089298ba984df65563d7ef0530cebd6dbc6 100644
--- a/media/audio/audio_output.h
+++ b/media/audio/audio_output.h
@@ -160,4 +160,3 @@ class AudioManager {
 
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_H_
-
diff --git a/media/audio/win/audio_manager_win.h b/media/audio/win/audio_manager_win.h
index 7ade9ecee3951c10ad6360c52606857bc2f52e79..12a4c06a436aaac031c9012a041345ac0ee2c4b5 100644
--- a/media/audio/win/audio_manager_win.h
+++ b/media/audio/win/audio_manager_win.h
@@ -40,4 +40,3 @@ class AudioManagerWin : public AudioManager {
 };
 
 #endif  // MEDIA_AUDIO_AUDIO_MANAGER_WIN_H_
-
diff --git a/media/audio/win/audio_output_win_unittest.cc b/media/audio/win/audio_output_win_unittest.cc
index 25dd7e616fe00dc000eed67c1283f0e43c4887c7..fbf6ba4291bc8e0e4e2eeb0dd6b1470afe818f16 100644
--- a/media/audio/win/audio_output_win_unittest.cc
+++ b/media/audio/win/audio_output_win_unittest.cc
@@ -283,4 +283,3 @@ TEST(WinAudioTest, PCMWaveStreamPlay200HzTone22Kss) {
   oas->Stop();
   oas->Close();
 }
-
diff --git a/media/audio/win/waveout_output_win.cc b/media/audio/win/waveout_output_win.cc
index fa848845c938581454bc5903bfd15583386eca32..95f70abc9c17df9404267797e7d936bffc88b1a9 100644
--- a/media/audio/win/waveout_output_win.cc
+++ b/media/audio/win/waveout_output_win.cc
@@ -251,4 +251,3 @@ void PCMWaveOutAudioOutputStream::WaveCallback(HWAVEOUT hwo, UINT msg,
       obj->callback_->OnClose(obj);
   }
 }
-
diff --git a/media/audio/win/waveout_output_win.h b/media/audio/win/waveout_output_win.h
index bdf35b367c3fee7e3baf2622feba69d924baf1db..1c8ffa603bad11e65850f9526f89b735e71e3a0f 100644
--- a/media/audio/win/waveout_output_win.h
+++ b/media/audio/win/waveout_output_win.h
@@ -103,4 +103,3 @@ class PCMWaveOutAudioOutputStream : public AudioOutputStream {
 };
 
 #endif  // MEDIA_AUDIO_WAVEOUT_OUTPUT_WIN_H_
-
diff --git a/media/base/yuv_convert.cc b/media/base/yuv_convert.cc
index e1da09ec908f94da0f8d689038c7a78cd1aa97e6..5b61bf0c01dad66f0b09fead92eb290d88a4ca9c 100644
--- a/media/base/yuv_convert.cc
+++ b/media/base/yuv_convert.cc
@@ -186,4 +186,3 @@ void ConvertYV12ToRGB32(const uint8* yplane,
 }
 
 }  // namespace media
-
diff --git a/media/base/yuv_convert.h b/media/base/yuv_convert.h
index 6b6ea24d4892c2ee9487502afe5905d39df60d2e..bd2175d9b47abbf133462615c8d2b55ce2586258 100644
--- a/media/base/yuv_convert.h
+++ b/media/base/yuv_convert.h
@@ -23,4 +23,3 @@ void ConvertYV12ToRGB32(const uint8* yplane,
 #endif  // MEDIA_BASE_YUV_CONVERT_H_
 
 }  // namespace media
-
diff --git a/media/base/yuv_convert_unittest.cc b/media/base/yuv_convert_unittest.cc
index 3b1ffec900f287d811a54396dab7dd84bb8c2142..59ceb1474906128313a8b577203fc2aae7eab242 100644
--- a/media/base/yuv_convert_unittest.cc
+++ b/media/base/yuv_convert_unittest.cc
@@ -61,4 +61,3 @@ TEST(YuvConvertTest, Basic) {
 
   EXPECT_EQ(rgb_diff, 0);
 }
-
diff --git a/printing/units_unittest.cc b/printing/units_unittest.cc
index e042cf31cab2e762e2d0beaed5a6c982be7ec700..b2db5676566b600fd7f31913537569b0e243d7d7 100644
--- a/printing/units_unittest.cc
+++ b/printing/units_unittest.cc
@@ -51,4 +51,3 @@ TEST(UnitsTest, Convertions) {
             ConvertHundredThousanthMeterToMilliInch(-kHundrethsMMPerInch));
   EXPECT_EQ(0, ConvertHundredThousanthMeterToMilliInch(0));
 }
-
diff --git a/testing/platform_test.h b/testing/platform_test.h
index 991ad0922c8b97c7c50f882dd95648fa8c318704..888be7481debff80ec198392010e5a205774e2df 100644
--- a/testing/platform_test.h
+++ b/testing/platform_test.h
@@ -32,5 +32,3 @@ typedef testing::Test PlatformTest;
 #endif // GTEST_OS_MAC
 
 #endif // TESTING_PLATFORM_TEST_H_
-
-
diff --git a/tools/gtk_clipboard_dump/gtk_clipboard_dump.cc b/tools/gtk_clipboard_dump/gtk_clipboard_dump.cc
index 9876e02d87e16b5c89a26461be198b734cd0fd96..9d00ddb2c5d1500ea3d6b4ee69360a4fdea82999 100644
--- a/tools/gtk_clipboard_dump/gtk_clipboard_dump.cc
+++ b/tools/gtk_clipboard_dump/gtk_clipboard_dump.cc
@@ -38,4 +38,3 @@ int main(int argc, char* argv[]) {
     printf("\n\n");
   }
 }
-
diff --git a/tools/measure_page_load_time/ie_bho/MeasurePageLoadTimeBHO.h b/tools/measure_page_load_time/ie_bho/MeasurePageLoadTimeBHO.h
index 8fe07acc56c832f04fdfd0f10b22320f86194c9e..e52e5506d28a25005e4f060a20667b0485eef954 100644
--- a/tools/measure_page_load_time/ie_bho/MeasurePageLoadTimeBHO.h
+++ b/tools/measure_page_load_time/ie_bho/MeasurePageLoadTimeBHO.h
@@ -86,4 +86,3 @@ private:
 };
 
 OBJECT_ENTRY_AUTO(__uuidof(MeasurePageLoadTimeBHO), CMeasurePageLoadTimeBHO)
-
diff --git a/tools/memory_watcher/call_stack.cc b/tools/memory_watcher/call_stack.cc
index ff732782825b99f28d8d6410a137b06152ec4a1b..490d3f5578dff1c0377d8f101c3b1772480ba921 100644
--- a/tools/memory_watcher/call_stack.cc
+++ b/tools/memory_watcher/call_stack.cc
@@ -373,4 +373,3 @@ void AllocationStack::operator delete(void* ptr) {
   stack->next_ = freelist_;
   freelist_ = stack;
 }
-
diff --git a/tools/memory_watcher/call_stack.h b/tools/memory_watcher/call_stack.h
index 02fc1fd3fc3c883c942a13933c49ad444c4baceb..e526969f0cebb45ea3656cc76cf6bcf16f05837b 100644
--- a/tools/memory_watcher/call_stack.h
+++ b/tools/memory_watcher/call_stack.h
@@ -111,4 +111,3 @@ class AllocationStack : public CallStack {
 };
 
 #endif  // MEMORY_WATCHER_CALL_STACK_H_
-
diff --git a/tools/memory_watcher/dllmain.cc b/tools/memory_watcher/dllmain.cc
index 21fd574d3d6a9bf0ce5d6f10fcc0f1580f3fd87b..a7d69f4216e2c9d55e0ee219b735355fa1a8dc25 100644
--- a/tools/memory_watcher/dllmain.cc
+++ b/tools/memory_watcher/dllmain.cc
@@ -143,4 +143,3 @@ __declspec(dllexport) void __cdecl SetLogName(char* name) {
 }
 
 }  // extern "C"
-
diff --git a/tools/memory_watcher/hotkey.h b/tools/memory_watcher/hotkey.h
index ba3b69295b57ca3372fcc65fbed0b113a813f0d3..c7b44e7b78d5e486200d5203cc1f54918a95642a 100644
--- a/tools/memory_watcher/hotkey.h
+++ b/tools/memory_watcher/hotkey.h
@@ -47,4 +47,3 @@ END_MSG_MAP()
 };
 
 #endif  // TOOLS_MEMORY_WATCHER_HOTKEY_H_
-
diff --git a/tools/memory_watcher/memory_hook.cc b/tools/memory_watcher/memory_hook.cc
index 81047a2be2a485be215bae8520c605a665113ebc..9c8bc03a818c8021049b9c294ce47c81a0635718 100644
--- a/tools/memory_watcher/memory_hook.cc
+++ b/tools/memory_watcher/memory_hook.cc
@@ -553,4 +553,3 @@ void MemoryHook::OnUntrack(HANDLE heap, int32 id, int32 size) {
   if (watcher_)
     watcher_->OnUntrack(heap, id, size);
 }
-
diff --git a/tools/memory_watcher/memory_hook.h b/tools/memory_watcher/memory_hook.h
index 131a38e19036eeed6853f5ecdf6f136e1f973ffa..1980b373e2eb84ac575a69e930fdd3c321a74b38 100644
--- a/tools/memory_watcher/memory_hook.h
+++ b/tools/memory_watcher/memory_hook.h
@@ -136,4 +136,3 @@ class MemoryHook : MemoryObserver {
 };
 
 #endif  // MEMORY_WATCHER_MEMORY_HOOK_
-
diff --git a/tools/memory_watcher/memory_watcher.cc b/tools/memory_watcher/memory_watcher.cc
index 9b6e3ed80502dbd7805a7ca7cfac0eccc8f85a49..0d05fcb5238ba4a82d976b5660d32236f428aed1 100644
--- a/tools/memory_watcher/memory_watcher.cc
+++ b/tools/memory_watcher/memory_watcher.cc
@@ -204,5 +204,3 @@ void MemoryWatcher::DumpLeaks() {
   fprintf(file_, "Total Bytes:  %d\n", block_map_size_);
   CloseLogFile();
 }
-
-
diff --git a/tools/memory_watcher/memory_watcher.h b/tools/memory_watcher/memory_watcher.h
index d5a1d109df1672eeaab7f980ad168f5004704a6e..62f51d89cbe1233460ef3b2102f897980295ba6b 100644
--- a/tools/memory_watcher/memory_watcher.h
+++ b/tools/memory_watcher/memory_watcher.h
@@ -88,4 +88,3 @@ class MemoryWatcher : MemoryObserver {
 
 
 #endif  // MEMORY_WATCHER_
-
diff --git a/tools/traceline/traceline/sidestep/mini_disassembler.h b/tools/traceline/traceline/sidestep/mini_disassembler.h
index c62d00627dab98cfbf3b089415da4f504df6ce64..ec8b872eaea8faade9c3c11c6cb16271ba66bdc4 100755
--- a/tools/traceline/traceline/sidestep/mini_disassembler.h
+++ b/tools/traceline/traceline/sidestep/mini_disassembler.h
@@ -153,4 +153,3 @@ class MiniDisassembler {
 };  // namespace sidestep
 
 #endif  // TRACELINE_SIDESTEP_MINI_DISASSEMBLER_H_
-
diff --git a/tools/traceline/traceline/sidestep/mini_disassembler_types.h b/tools/traceline/traceline/sidestep/mini_disassembler_types.h
index 60f305170ac8948b53974e60fb903ea59584e1f6..cb9e0062456e372e9d405505424df1d90898a850 100755
--- a/tools/traceline/traceline/sidestep/mini_disassembler_types.h
+++ b/tools/traceline/traceline/sidestep/mini_disassembler_types.h
@@ -195,4 +195,3 @@ struct ModrmEntry {
 };  // namespace sidestep
 
 #endif  // TRACELINE_SIDESTEP_MINI_DISASSEMBLER_TYPES_H_
-