libgui: Enable -Weverything and -Werror

Enables -Weverything and -Werror, with just a few exceptions for
warnings we can't (or shouldn't need to) work around.

Cherry pick of I034abec27bf4020d84af60d7acc1939c59986dd6 plus a
couple of minor changes to CpuConsumer.cpp to make it work with a
prior change:
    Uncomment CC_LOGV on line 46
    Change C-style cast to static_cast on line 71

Change-Id: Iaec610477ea0122317b0578fb74caf2383d4cf08
diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index 95f5507..5fc83ee 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -40,9 +40,9 @@
 
 // Macros for including the ConsumerBase name in log messages
 #define CB_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__)
-#define CB_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__)
-#define CB_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__)
-#define CB_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__)
+//#define CB_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__)
+//#define CB_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__)
+//#define CB_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__)
 #define CB_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__)
 
 namespace android {