Add breakpad support (issue #1131).

- General usage instructions are available at https://sites.google.com/a/chromium.org/dev/developers/testing/webkit-layout-tests/using-breakpad-with-content-shell.
- Mac: Generate "Chromium Embedded Framework.framework" using a new cef_framework target (the libcef target is now only used on Windows and Linux). Rename "Libraries/libcef.dylib" to "Chromium Embedded Framework". Distribute Release and Debug builds of the "Chromium Embedded Framework.framework" folder as part of the binary distribution.
- Mac: Fix the Xcode target compiler setting for the binary distribution so that it no longer needs to be set manually.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1524 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/common/cef_switches.cc

@@ -86,4 +86,7 @@ const char kEnableSpeechInput[]           = "enable-speech-input";
 // Enable the speech input profanity filter.
 const char kEnableProfanityFilter[]       = "enable-profanity-filter";
 
+// The directory breakpad should store minidumps in.
+const char kCrashDumpsDir[]               = "crash-dumps-dir";
+
 }  // namespace switches