Re-land "Remove <(webrtc_root) from source file entries."

Changes differing from https://webrtc-codereview.appspot.com/37859004:
* I put the include_tests==1 stuff of audio_coding.gypi in its
  own audio_coding_tests.gypi file, including the Android and isolate
  targets which were incorrectly located in the previous CL
* I moved the bwe utilities in remote_bitrate_estimator.gypi
  into include_tests==1 since they depend on test.gyp after I
  cleaned up the duplicated inclusion of rtp_file_reader.cc

R=stefan@webrtc.org
TBR=tina.legrand@webrtc.org
TESTED=Passing gyp and compile using:
webrtc/build/gyp_webrtc -Dinclude_tests=1
webrtc/build/gyp_webrtc -Dinclude_tests=0
I also setup a Chromium checkout with my checkout mounted in
third_party/webrtc and ran build/gyp_chromium successfully.

BUG=4185

Review URL: https://webrtc-codereview.appspot.com/33159004

Cr-Commit-Position: refs/heads/master@{#8205}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8205 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_coding/codecs/tools/audio_codec_speed_tests.isolate b/webrtc/modules/audio_coding/audio_codec_speed_tests.isolate
similarity index 100%
rename from webrtc/modules/audio_coding/codecs/tools/audio_codec_speed_tests.isolate
rename to webrtc/modules/audio_coding/audio_codec_speed_tests.isolate
diff --git a/webrtc/modules/audio_coding/audio_coding.gypi b/webrtc/modules/audio_coding/audio_coding.gypi
new file mode 100644
index 0000000..0a500d9
--- /dev/null
+++ b/webrtc/modules/audio_coding/audio_coding.gypi
@@ -0,0 +1,29 @@
+# Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+{
+  'includes': [
+    '../../build/common.gypi',
+    'codecs/interfaces.gypi',
+    'codecs/cng/cng.gypi',
+    'codecs/g711/g711.gypi',
+    'codecs/g722/g722.gypi',
+    'codecs/ilbc/ilbc.gypi',
+    'codecs/isac/main/source/isac.gypi',
+    'codecs/isac/fix/source/isacfix.gypi',
+    'codecs/pcm16b/pcm16b.gypi',
+    'codecs/red/red.gypi',
+    'main/acm2/audio_coding_module.gypi',
+    'neteq/neteq.gypi',
+  ],
+  'conditions': [
+    ['include_opus==1', {
+      'includes': ['codecs/opus/opus.gypi',],
+    }],
+  ],
+}
diff --git a/webrtc/modules/audio_coding/audio_coding_tests.gypi b/webrtc/modules/audio_coding/audio_coding_tests.gypi
new file mode 100644
index 0000000..86a92c5
--- /dev/null
+++ b/webrtc/modules/audio_coding/audio_coding_tests.gypi
@@ -0,0 +1,72 @@
+# Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+{
+  'includes': [
+    '../../build/common.gypi',
+    'codecs/isac/isac_test.gypi',
+    'codecs/isac/isacfix_test.gypi',
+  ],
+  'targets': [
+    {
+      'target_name': 'audio_codec_speed_tests',
+      'type': '<(gtest_target_type)',
+      'dependencies': [
+        'audio_processing',
+        'iSACFix',
+        'webrtc_opus',
+        '<(DEPTH)/testing/gtest.gyp:gtest',
+        '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers',
+        '<(webrtc_root)/test/test.gyp:test_support_main',
+      ],
+      'sources': [
+        'codecs/isac/fix/test/isac_speed_test.cc',
+        'codecs/opus/opus_speed_test.cc',
+        'codecs/tools/audio_codec_speed_test.h',
+        'codecs/tools/audio_codec_speed_test.cc',
+      ],
+      'conditions': [
+        ['OS=="android"', {
+          'dependencies': [
+            '<(DEPTH)/testing/android/native_test.gyp:native_test_native_code',
+          ],
+        }],
+      ],
+    },
+  ],
+  'conditions': [
+    ['OS=="android"', {
+      'targets': [
+        {
+          'target_name': 'audio_codec_speed_tests_apk_target',
+          'type': 'none',
+          'dependencies': [
+            '<(apk_tests_path):audio_codec_speed_tests_apk',
+          ],
+        },
+      ],
+    }],
+    ['test_isolation_mode != "noop"', {
+      'targets': [
+        {
+          'target_name': 'audio_codec_speed_tests_run',
+          'type': 'none',
+          'dependencies': [
+            'audio_codec_speed_tests',
+          ],
+          'includes': [
+            '../../build/isolate.gypi',
+          ],
+          'sources': [
+            'audio_codec_speed_tests.isolate',
+          ],
+        },
+      ],
+    }],
+  ],
+}
diff --git a/webrtc/modules/audio_coding/codecs/tools/audio_codec_speed_tests.gypi b/webrtc/modules/audio_coding/codecs/tools/audio_codec_speed_tests.gypi
deleted file mode 100644
index e296634..0000000
--- a/webrtc/modules/audio_coding/codecs/tools/audio_codec_speed_tests.gypi
+++ /dev/null
@@ -1,66 +0,0 @@
-# Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
-#
-# Use of this source code is governed by a BSD-style license
-# that can be found in the LICENSE file in the root of the source
-# tree. An additional intellectual property rights grant can be found
-# in the file PATENTS.  All contributing project authors may
-# be found in the AUTHORS file in the root of the source tree.
-
-{
-  'targets': [
-  {
-    'target_name': 'audio_codec_speed_tests',
-    'type': '<(gtest_target_type)',
-    'dependencies': [
-      'audio_processing',
-      'iSACFix',
-      'webrtc_opus',
-      '<(DEPTH)/testing/gtest.gyp:gtest',
-      '<(webrtc_root)/system_wrappers/system_wrappers.gyp:system_wrappers',
-      '<(webrtc_root)/test/test.gyp:test_support_main',
-    ],
-    'sources': [
-      'audio_codec_speed_test.h',
-      'audio_codec_speed_test.cc',
-      '<(webrtc_root)/modules/audio_coding/codecs/opus/opus_speed_test.cc',
-      '<(webrtc_root)/modules/audio_coding/codecs/isac/fix/test/isac_speed_test.cc',
-    ],
-    'conditions': [
-      ['OS=="android"', {
-        'dependencies': [
-          '<(DEPTH)/testing/android/native_test.gyp:native_test_native_code',
-        ],
-      }],
-    ],
-  }],
-  'conditions': [
-    ['OS=="android"', {
-      'targets': [
-        {
-          'target_name': 'audio_codec_speed_tests_apk_target',
-          'type': 'none',
-          'dependencies': [
-            '<(apk_tests_path):audio_codec_speed_tests_apk',
-          ],
-        },
-      ],
-    }],
-    ['test_isolation_mode != "noop"', {
-      'targets': [
-        {
-          'target_name': 'audio_codec_speed_tests_run',
-          'type': 'none',
-          'dependencies': [
-            'audio_codec_speed_tests',
-          ],
-          'includes': [
-            '../../../../build/isolate.gypi',
-          ],
-          'sources': [
-            'audio_codec_speed_tests.isolate',
-          ],
-        },
-      ],
-    }],
-  ],
-}